Updating vmware3 (and missing "avail_end" from /usr/include/machine/pmap.h)

fchang at cs.ubc.ca fchang at cs.ubc.ca
Sat Mar 1 15:07:04 UTC 2008

On Sat, 1 Mar 2008, Roman Divacky wrote:
> I think you can use "ptoa(Maxmem) - round_page(MSGBUF_SIZE)",
> the ptoa(Maxmem)
> erm.. what I meant to say what
> that hw.realmem - round_page(MSGBUF_SIZE) should work


Before I saw your message, I continued my search and found an January 2007
mailing list message by Kip Macy on how to compute avail_end:

   static vm_paddr_t
     vm_paddr_t avail_end;
     int i;
     avail_end = phys_avail[1];
     for (i = 0; phys_avail[i + 1]; i += 2) {
       if (phys_avail[i + 1] > avail_end)
         avail_end = phys_avail[i + 1];
     return avail_end;

Are the two methods equivalent?

Also, how do I use hw.realmem like you suggested?
I tried the following, but the file wouldn't compile:

   static vm_paddr_t avail_end = hw.realmem - round_page(MSGBUF_SIZE);

Thank you!

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